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author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2018-01-23 04:58:35 +0100 |
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committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-08-21 16:22:43 +0200 |
commit | 2762eed1f5534074fcce703bdda8702905dc4c61 (patch) | |
tree | f2dca51900783c8fd44be43aacbb5f571bba70fd /hw/sd/pl181.c | |
parent | 26c5b0f4cbe19ad87d3aaba22cd1a8edc25f7ceb (diff) | |
download | qemu-2762eed1f5534074fcce703bdda8702905dc4c61.zip qemu-2762eed1f5534074fcce703bdda8702905dc4c61.tar.gz qemu-2762eed1f5534074fcce703bdda8702905dc4c61.tar.bz2 |
hw/sd/pl181: Expose a SDBus and connect the SDCard to it
Convert the controller to the SDBus API:
- add the a TYPE_PL181_BUS object of type TYPE_SD_BUS,
- adapt the SDBusClass set_inserted/set_readonly handlers
- create the bus in the PL181 controller
- switch legacy sd_*() API to the sdbus_*() API.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200705204630.4133-7-f4bug@amsat.org>
Diffstat (limited to 'hw/sd/pl181.c')
-rw-r--r-- | hw/sd/pl181.c | 67 |
1 files changed, 51 insertions, 16 deletions
diff --git a/hw/sd/pl181.c b/hw/sd/pl181.c index ab4cd73..f6de06e 100644 --- a/hw/sd/pl181.c +++ b/hw/sd/pl181.c @@ -17,6 +17,7 @@ #include "qemu/module.h" #include "qemu/error-report.h" #include "qapi/error.h" +#include "hw/qdev-properties.h" //#define DEBUG_PL181 1 @@ -32,11 +33,13 @@ do { printf("pl181: " fmt , ## __VA_ARGS__); } while (0) #define TYPE_PL181 "pl181" #define PL181(obj) OBJECT_CHECK(PL181State, (obj), TYPE_PL181) +#define TYPE_PL181_BUS "pl181-bus" + typedef struct PL181State { SysBusDevice parent_obj; MemoryRegion iomem; - SDState *card; + SDBus sdbus; uint32_t clock; uint32_t power; uint32_t cmdarg; @@ -183,7 +186,7 @@ static void pl181_do_command(PL181State *s) request.cmd = s->cmd & PL181_CMD_INDEX; request.arg = s->cmdarg; DPRINTF("Command %d %08x\n", request.cmd, request.arg); - rlen = sd_do_command(s->card, &request, response); + rlen = sdbus_do_command(&s->sdbus, &request, response); if (rlen < 0) goto error; if (s->cmd & PL181_CMD_RESPONSE) { @@ -224,12 +227,12 @@ static void pl181_fifo_run(PL181State *s) int is_read; is_read = (s->datactrl & PL181_DATA_DIRECTION) != 0; - if (s->datacnt != 0 && (!is_read || sd_data_ready(s->card)) + if (s->datacnt != 0 && (!is_read || sdbus_data_ready(&s->sdbus)) && !s->linux_hack) { if (is_read) { n = 0; while (s->datacnt && s->fifo_len < PL181_FIFO_LEN) { - value |= (uint32_t)sd_read_data(s->card) << (n * 8); + value |= (uint32_t)sdbus_read_data(&s->sdbus) << (n * 8); s->datacnt--; n++; if (n == 4) { @@ -250,7 +253,7 @@ static void pl181_fifo_run(PL181State *s) } n--; s->datacnt--; - sd_write_data(s->card, value & 0xff); + sdbus_write_data(&s->sdbus, value & 0xff); value >>= 8; } } @@ -456,6 +459,20 @@ static const MemoryRegionOps pl181_ops = { .endianness = DEVICE_NATIVE_ENDIAN, }; +static void pl181_set_readonly(DeviceState *dev, bool level) +{ + PL181State *s = (PL181State *)dev; + + qemu_set_irq(s->card_readonly, level); +} + +static void pl181_set_inserted(DeviceState *dev, bool level) +{ + PL181State *s = (PL181State *)dev; + + qemu_set_irq(s->card_inserted, level); +} + static void pl181_reset(DeviceState *d) { PL181State *s = PL181(d); @@ -479,12 +496,9 @@ static void pl181_reset(DeviceState *d) s->mask[0] = 0; s->mask[1] = 0; - /* We can assume our GPIO outputs have been wired up now */ - sd_set_cb(s->card, s->card_readonly, s->card_inserted); - /* Since we're still using the legacy SD API the card is not plugged - * into any bus, and we must reset it manually. - */ - device_legacy_reset(DEVICE(s->card)); + /* Reset other state based on current card insertion/readonly status */ + pl181_set_inserted(DEVICE(s), sdbus_get_inserted(&s->sdbus)); + pl181_set_readonly(DEVICE(s), sdbus_get_readonly(&s->sdbus)); } static void pl181_init(Object *obj) @@ -499,19 +513,24 @@ static void pl181_init(Object *obj) sysbus_init_irq(sbd, &s->irq[1]); qdev_init_gpio_out_named(dev, &s->card_readonly, "card-read-only", 1); qdev_init_gpio_out_named(dev, &s->card_inserted, "card-inserted", 1); + + qbus_create_inplace(&s->sdbus, sizeof(s->sdbus), + TYPE_PL181_BUS, dev, "sd-bus"); } static void pl181_realize(DeviceState *dev, Error **errp) { - PL181State *s = PL181(dev); + DeviceState *card; DriveInfo *dinfo; /* FIXME use a qdev drive property instead of drive_get_next() */ + card = qdev_new(TYPE_SD_CARD); dinfo = drive_get_next(IF_SD); - s->card = sd_init(dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, false); - if (s->card == NULL) { - error_setg(errp, "sd_init failed"); - } + qdev_prop_set_drive_err(card, "drive", blk_by_legacy_dinfo(dinfo), + &error_fatal); + qdev_realize_and_unref(card, + qdev_get_child_bus(dev, "sd-bus"), + &error_fatal); } static void pl181_class_init(ObjectClass *klass, void *data) @@ -533,9 +552,25 @@ static const TypeInfo pl181_info = { .class_init = pl181_class_init, }; +static void pl181_bus_class_init(ObjectClass *klass, void *data) +{ + SDBusClass *sbc = SD_BUS_CLASS(klass); + + sbc->set_inserted = pl181_set_inserted; + sbc->set_readonly = pl181_set_readonly; +} + +static const TypeInfo pl181_bus_info = { + .name = TYPE_PL181_BUS, + .parent = TYPE_SD_BUS, + .instance_size = sizeof(SDBus), + .class_init = pl181_bus_class_init, +}; + static void pl181_register_types(void) { type_register_static(&pl181_info); + type_register_static(&pl181_bus_info); } type_init(pl181_register_types) |